According to my assumption, it's better to hold the coin than the edges. You regret later on ...
Bitcoin is good for long term holding and you will never regret holding it. I've seen people who are impatient enough to wait the good timing for selling bitcoin and they did it earlier.
Now, most of those people that lost their patience regret their decision. Selling should be a decision that you will never regret and you don't have someone to blame but yourself if you do it wrong.